Patents by Inventor Ying-Lun Chang
Ying-Lun Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170222123Abstract: A piezoelectric actuator includes a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The suspension plate is a square structure. The length of the suspension plate is in a range between 4 mm and 8 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The outer frame is arranged around the suspension plate. The at least one bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate. The piezoelectric ceramic plate is a square structure and has a length not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration.Type: ApplicationFiled: January 19, 2017Publication date: August 3, 2017Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
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Publication number: 20170222121Abstract: A piezoelectric actuator includes a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The suspension plate is a square structure. The length of the suspension plate is in a range between 7.5 mm and 12 mm, and the suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The outer frame is arranged around the suspension plate. The at least one bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate. The piezoelectric ceramic plate is a square structure and has a length not larger than a length of the suspension plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration.Type: ApplicationFiled: December 28, 2016Publication date: August 3, 2017Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
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Publication number: 20170222125Abstract: A piezoelectric actuator includes a suspension plate, a piezoelectric ceramic plate, an outer frame and a bracket. The suspension plate is permitted to undergo a curvy vibration from a middle portion to a periphery portion. The piezoelectric ceramic plate is attached on the suspension plate. When a voltage is applied to the piezoelectric ceramic plate, the suspension plate is driven to undergo the curvy vibration. The outer frame is arranged around the suspension plate. The bracket is connected between the suspension plate and the outer frame for elastically supporting the suspension plate, and includes an intermediate part formed in a vacant space between the suspension plate and the outer frame and in parallel with the outer frame and the suspension plate, a first connecting part arranged between the intermediate part and the suspension plate, and a second connecting part arranged between the intermediate part and the outer frame.Type: ApplicationFiled: January 19, 2017Publication date: August 3, 2017Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
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Publication number: 20170218937Abstract: A miniature pneumatic device includes a miniature fluid control device and a miniature valve device. The miniature fluid control device includes a gas inlet plate, a resonance plate, a piezoelectric actuator and a gas collecting plate. The gas collecting plate has a length in a range between 6 mm and 18 mm and a width in a range between 6 mm and 18 mm. A gap is formed between the resonance plate and the piezoelectric actuator to define a first chamber. When the piezoelectric actuator is driven and after the gas is fed into the gas inlet plate, the gas is transferred to the first chamber through the resonance plate and then transferred downwardly. The miniature valve device comprises a valve plate and a gas outlet plate. The gas is transferred from the miniature fluid control device to the miniature valve device so as to perform pressure-collecting operation or pressure-releasing operation.Type: ApplicationFiled: January 25, 2017Publication date: August 3, 2017Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
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Publication number: 20170218942Abstract: A miniature fluid control device includes a piezoelectric actuator and a housing. The piezoelectric actuator comprises a suspension plate, an outer frame, at least one bracket and a piezoelectric ceramic plate. The piezoelectric ceramic plate is attached on a first surface of the suspension plate and has a length not larger than that of the suspension plate. The housing includes a gas collecting plate and a base. The gas collecting plate is a frame body with a sidewall and comprises a plurality of perforations. The base seals a bottom of the piezoelectric actuator and has a central aperture corresponding to the middle portion of the suspension plate. When the voltage is applied to the piezoelectric actuator, the suspension plate is permitted to undergo the curvy vibration, the fluid is transferred from the central aperture of the base to the gas-collecting chamber, and exited from the perforations.Type: ApplicationFiled: January 19, 2017Publication date: August 3, 2017Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
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Publication number: 20170218940Abstract: A miniature pneumatic device includes a miniature fluid control device and a miniature valve device. The miniature fluid control device includes a gas inlet plate, a resonance plate, a piezoelectric actuator and a gas collecting plate. A first chamber is formed between the resonance plate and the piezoelectric actuator. After a gas is fed into the gas inlet plate, the gas is transferred to the first chamber through the resonance plate and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve device includes a valve plate and a gas outlet plate. After the gas is transferred from the miniature fluid control device to the miniature valve device, the valve opening of the valve plate is correspondingly opened or closed and the gas is transferred in one direction. Consequently, a pressure-collecting operation or a pressure-releasing operation is selectively performed.Type: ApplicationFiled: January 19, 2017Publication date: August 3, 2017Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
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Publication number: 20170218938Abstract: A miniature pneumatic device includes a miniature fluid control device and a miniature valve device. The miniature fluid control device includes a gas inlet plate, a resonance plate, a piezoelectric actuator and a gas collecting plate. A first chamber is formed between the resonance plate and the piezoelectric actuator. After a gas is fed into the gas inlet plate, the gas is transferred to the first chamber through the resonance plate and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve device includes a valve plate and a gas outlet plate. After the gas is transferred from the miniature fluid control device to the miniature valve device, the valve opening of the valve plate is correspondingly opened or closed and the gas is transferred in one direction. Consequently, a pressure-collecting operation or a pressure-releasing operation is selectively performed.Type: ApplicationFiled: December 28, 2016Publication date: August 3, 2017Inventors: Shih-Chang Chen, Chi-Feng Huang, Yung-Lung Han, Jia-Yu Liao, Shou-Hung Chen, Che-Wei Huang, Hung-Hsin Liao, Chao-Chih Chen, Jheng-Wei Chen, Ying-Lun Chang, Chia-Hao Chang, Wei-Ming Lee
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Patent number: 9611843Abstract: A micro-gas pressure driving apparatus includes a miniature gas transportation module and a miniature valve module. The miniature gas transportation module includes a gas inlet plate, a fluid channel plate, a resonance membrane and a piezoelectric actuator. A first chamber is defined between the resonance membrane and the piezoelectric actuator. After the piezoelectric actuator is activated to feed a gas through the gas inlet plate, the gas is transferred to the first chamber through the fluid channel plate and the resonance membrane and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve module includes a gas collecting plate, a valve membrane and a gas outlet plate. After the gas is transferred from the miniature gas transportation module to the gas-collecting chamber, the gas is transferred in one direction, so that a pressure-collecting operation or a pressure-releasing operation is selectively performed.Type: GrantFiled: May 7, 2014Date of Patent: April 4, 2017Assignee: MICROJET TECHNOLOGY CO., LTD.Inventors: Ta-Wei Hsueh, Ying-Lun Chang, Hsiang-Dyi Wu, Rong-Ho Yu, Shih-Chang Chen, Tsung-Pat Chou, Yau-Ji Lee, Jia-Yu Liao
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Patent number: 9039142Abstract: An ink-jet printing module is used for a page-width array ink-jet printer. The ink jet printing module includes a page-width array platen and a plurality of ink-jet cartridges. The page-width array platen has a plurality of receiving cavities arranged as an array. Each of the ink-jet cartridges is detachably and independently embedded into one of the receiving cavities, and includes a body for storing ink, an ink-jet chip to be driven for ejecting the ink, a plurality of nozzles disposed on the ink-jet chip, and a control node for receiving signal to drive the ink-jet chip. The ink-jet chip is disposed on a bottom of the page-width array platen and is driven to eject the ink through the nozzles onto a printing medium.Type: GrantFiled: November 29, 2012Date of Patent: May 26, 2015Assignee: MICROJET TECHNOLOGY CO., LTD.Inventors: Hao-Jan Mou, Ta-Wei Hsueh, Ying-Lun Chang, Kwo-Yuan Shi, Chin-Tsung Chen, Yung-Lung Han, Chi-Feng Huang
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Patent number: 9022525Abstract: A page-width array printing device includes a page-width array printing mechanism including at least one page-width array printing module. The page-width array printing module includes a printing platform, a first page-width array printing unit and a second page-width array printing unit. The first page-width array printing unit includes a plurality of first inkjet cartridges. The second page-width array printing unit includes a plurality of second inkjet cartridges. The first page-width array printing unit and the second page-width array printing unit are in parallel with each other. The first inkjet cartridges and the second inkjet cartridges are staggered and independently and detachably disposed on the printing platform. Each of the first inkjet cartridges and the second inkjet cartridges includes an inkjet chip. The inkjet chip includes four ink supply channels and a plurality of nozzles so as to perform a monochromatic or polychromatic page-width array printing operation.Type: GrantFiled: August 2, 2013Date of Patent: May 5, 2015Assignee: Microjet Technology Co., Ltd.Inventors: Ta-Wei Hsueh, Ying-Lun Chang, Hsien-Chung Tai, Yung-Lung Han, Chi-Feng Huang
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Publication number: 20140377099Abstract: A micro-gas pressure driving apparatus includes a miniature gas transportation module and a miniature valve module. The miniature gas transportation module includes a gas inlet plate, a fluid channel plate, a resonance membrane and a piezoelectric actuator. A first chamber is defined between the resonance membrane and the piezoelectric actuator. After the piezoelectric actuator is activated to feed a gas through the gas inlet plate, the gas is transferred to the first chamber through the fluid channel plate and the resonance membrane and then transferred downwardly. Consequently, a pressure gradient is generated to continuously push the gas. The miniature valve module includes a gas collecting plate, a valve membrane and a gas outlet plate. After the gas is transferred from the miniature gas transportation module to the gas-collecting chamber, the gas is transferred in one direction, so that a pressure-collecting operation or a pressure-releasing operation is selectively performed.Type: ApplicationFiled: May 7, 2014Publication date: December 25, 2014Applicant: MICROJET TECHNOLOGY CO., LTD.Inventors: Ta-Wei Hsueh, Ying-Lun Chang, Hsiang-Dyi Wu, Rong-Ho Yu, Shih-Chang Chen, Tsung-Pat Chou, Yau-Ji Lee, Jia-Yu Liao
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Patent number: 8902591Abstract: The present invention relates to a heat dissipation device, which comprises: a fluid, a fluid delivery device, and a circular pipe. The fluid delivery device is for propelling and delivering the fluid, the circular pipe is connected with the fluid delivery device, at least a portion of the circular pipe itself contacting with a heat generation device for conducting heat to the portion of the circular pipe, so as letting the fluid to be delivered by the fluid delivery device for delivering heat to the rest portion of the circular pipe, and to dissipate the heat generation device.Type: GrantFiled: May 4, 2012Date of Patent: December 2, 2014Assignee: Microjet Technology Co., Ltd.Inventors: Hao Jan Mou, Ta Wei Hsueh, Ying Lun Chang, Shih Chang Chen, Yung Lung Han, Chi Feng Huang
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Patent number: 8820893Abstract: The present invention related to an inkjet printhead, adaptive for an ink cartridge including one ink-supplying tank, the inkjet printhead includes: a nozzle plate having a plurality of nozzles; and an inkjet chip for controlling ink jetting and having a total area region having a length and a width, the total area region including: a non-wiring region for installing one single ink-supplying flow channels; and a wiring region for installing an internal circuit including a plurality inkjet unit assembly, each inkjet unit of the inkjet unit assembly including a heater installed correspondingly to the nozzle; wherein an area of the wiring region of the inkjet chip is or less than 82% of a total area of the inkjet chip.Type: GrantFiled: December 29, 2011Date of Patent: September 2, 2014Assignee: Microjet Technology Co., Ltd.Inventors: Hao Jan Mou, Ta Wei Hsueh, Ying Lun Chang, Rong Ho Yu, Hsien Chung Tai, Cheng Ming Chang, Wen Hsiung Liao, Yung Lung Han
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Patent number: 8746326Abstract: The present invention is related to a liquid heat-dissipating module, for dissipating the heat generated by a heating element, at least comprising: a heat-absorbing unit, being connected with the heating element, for absorbing the heat generated by the heating element; a fluid delivery device, for delivering a fluid, the fluid delivery device being stacked with the heat-absorbing unit and having a heat-dissipating structure; and a connecting pipe, being connected with the heat-absorbing unit and the fluid delivery device for delivering the fluid into the heat-absorbing unit, so as to absorb the heat of the heat-absorbing unit; the fluid absorbing the heat is then delivered back to the fluid delivery device, letting the heat-dissipating structure to dissipate the heat contained in the fluid.Type: GrantFiled: March 9, 2011Date of Patent: June 10, 2014Assignee: Microjet Technology Co., Ltd.Inventors: Hao Jan Mou, Ta Wei Hsueh, Ying Lun Chang, Rong Ho Yu, Shih Chang Chen
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Publication number: 20140055526Abstract: A page-width array printing device includes a page-width array printing mechanism including at least one page-width array printing module. The page-width array printing module includes a printing platform, a first page-width array printing unit and a second page-width array printing unit. The first page-width array printing unit includes a plurality of first inkjet cartridges. The second page-width array printing unit includes a plurality of second inkjet cartridges. The first page-width array printing unit and the second page-width array printing unit are in parallel with each other. The first inkjet cartridges and the second inkjet cartridges are staggered and independently and detachably disposed on the printing platform. Each of the first inkjet cartridges and the second inkjet cartridges includes an inkjet chip. The inkjet chip includes four ink supply channels and a plurality of nozzles so as to perform a monochromatic or polychromatic page-width array printing operation.Type: ApplicationFiled: August 2, 2013Publication date: February 27, 2014Applicant: MICROJET TECHNOLOGY CO., LTDInventors: Ta-Wei Hsueh, Ying-Lun Chang, Hsien-Chung Tai, Yung-Lung Han, Chi-Feng Huang
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Patent number: 8651640Abstract: An ink supply structure includes at least one ink cartridge, at least one dye ink chamber, and at least one pigment ink chamber. The at least one dye ink chamber is contained in the at least one ink cartridge for storing a dye ink. The at least one pigment ink chamber is contained in the at least one ink cartridge for storing a pigment ink. One of the dye ink within the dye ink chamber and the pigment ink within the pigment ink chamber is selectively supplied from the at least one ink cartridge.Type: GrantFiled: November 5, 2012Date of Patent: February 18, 2014Assignee: Microjet Technology Co., Ltd.Inventors: Ta-Wei Hsueh, Ying-Lun Chang, Yung-Lung Han, Chi-Feng Huang, Chun-Cheng Ho
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Publication number: 20130328971Abstract: An ink-jet printing module is used for a page-width array ink-jet printer. The ink jet printing module includes a page-width array platen and a plurality of ink-jet cartridges. The page-width array platen has a plurality of receiving cavities arranged as an array. Each of the ink-jet cartridges is detachably and independently embedded into one of the receiving cavities, and includes a body for storing ink, an ink-jet chip to be driven for ejecting the ink, a plurality of nozzles disposed on the ink-jet chip, and a control node for receiving signal to drive the ink-jet chip. The ink-jet chip is disposed on a bottom of the page-width array platen and is driven to eject the ink through the nozzles onto a printing medium.Type: ApplicationFiled: November 29, 2012Publication date: December 12, 2013Applicant: MICROJET TECHNOLOGY CO., LTDInventors: Hao-Jan Mou, Ta-Wei Hsueh, Ying-Lun Chang, Kwo-Yuan Shi, Chin-Tsung Chen, Yung-Lung Han, Chi-Feng Huang
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Publication number: 20130328972Abstract: An ink-jet printing module is used for a page-width array ink-jet printer. The ink jet printing module includes a page-width array platen and a plurality of ink-jet cartridges. The page-width array platen has a plurality of receiving cavities arranged as an array. Each of the ink-jet cartridges is detachably and independently embedded into one of the receiving cavities.Type: ApplicationFiled: November 29, 2012Publication date: December 12, 2013Applicant: MICROJET TECHNOLOGY CO., LTDInventors: Hao-Jan Mou, Ta-Wei Hsueh, Ying-Lun Chang, Kwo-Yuan Shi, Chin-Tsung Chen, Yung-Lung Han, Chi-Feng Huang
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Patent number: 8441169Abstract: A voltage converter is provided for receiving a low input DC voltage and driving a piezoelectric actuator of a fluid transportation device. The voltage converter includes plural capacitors, a resistor and a boost chip. The boost chip is connected with the plural capacitors and the resistor, has a switch element and a polar switching circuit, and receives the low input DC voltage. The low input DC voltage is increased and multiplied to a high DC voltage by a switching operation of the switch element. The high DC voltage is converted into an output AC voltage by the polar switching circuit so as to drive the piezoelectric actuator. An operating frequency of the boost chip is controlled by the plural capacitors and the resistor.Type: GrantFiled: May 18, 2010Date of Patent: May 14, 2013Assignee: Microjet Technology Co., Ltd.Inventors: Shih Chang Chen, Ying Lun Chang, Rong Ho Yu, Daw Ping Chang, Kuei Liang Chiang
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Publication number: 20120287655Abstract: The present invention relates to a heat dissipation device, which comprises: a fluid, a fluid delivery device, and a circular pipe. The fluid delivery device is for propelling and delivering the fluid, the circular pipe is connected with the fluid delivery device, at least a portion of the circular pipe itself contacting with a heat generation device for conducting heat to the portion of the circular pipe, so as letting the fluid to be delivered by the fluid delivery device for delivering heat to the rest portion of the circular pipe, and to dissipate the heat generation device.Type: ApplicationFiled: May 4, 2012Publication date: November 15, 2012Inventors: Hao Jan Mou, Ta Wei Hsueh, Ying Lun Chang, Shih Chang Chen, Yung Lung Han, Chi Feng Huang